What is CVE-2026-48791?

CVE-2026-48791 is a low-severity vulnerability in Sigstore Sigstore-java, classified under Improper Verification of Cryptographic Signature. CVSS score: 2.0/10. Published 2026-08-13.

How severe is CVE-2026-48791?

Low severity. CVSS v3 base score is 2.0 out of 10.

Vulnerability in Sigstore Sigstore-java

CVE-2026-48791

sigstore-java is a sigstore java client for interacting with sigstore infrastructure. Version 2.0.0 erroneously removed verification of the integrated (Rekor entry) time) against the Fulcio certificate. Version 2.1.0 re-added this verifica…

CVSS v3 metric

CVSS v3 base score 2.0 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N.

Affected products

Sigstore Sigstore-java — versions = 2.0.0

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-48791?: CVE-2026-48791 is a low-severity vulnerability in Sigstore Sigstore-java, classified under Improper Verification of Cryptographic Signature. CVSS score: 2.0/10. Published 2026-08-13.
How severe is CVE-2026-48791?: Low severity. CVSS v3 base score is 2.0 out of 10.